Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

## I Took a Trip on a Train

You took four snapshots of some geometric shapes that you saw on your train trip around a circular track. You dropped the pictures and got them mixed up, and now you must imagine your trip to put them back in order.

## Inscribed Angles

Study inscribed angles in semicircles and quarter-circles. What conjectures can you make about the measure of an inscribed angle in semi- or quarter-circles? View non-Flash version.

## Interpreting Stories and Graphs

Read a story and draw a graph that tells the same story. Next look at a graph and write a story to match.

## Konversion Kingdom Mania (British and Metric Conversions)

Visit an amusement park and try to solve six conversion problems as fast as you can.

## The Largest Container

Observe as a sheet of letter-sized paper is cut and assembled to form a rectangular prism, a triangular prism and a cylinder. Which object would contain the greatest volume?

## Learning Temperature Units and Their Symbols

Did you know that there are other temperature scales besides Fahrenheit and Celsius? Read the descriptions of all the scales and then match the scale to the correct thermometer.

## Length Symbols

Study the names and abbreviations of length units in both the metric and British systems. Then play a game to see how well you remember them.

## Limerick Factory

A limerick is a very funny piece of nonsense verse with its own special pattern of rhyme and rhythm. Use this tool to choose phrases to create your own limerick that follows the pattern.

## Line Plot Representations

Create line plots that have a mean of 5 but different deviations from the mean. Notice that the total deviation above the mean must equal the total deviation below the mean.

## Location Graphs

Consider two graphs representing the number of people present at two different locations over the course of the day. Interpret the graphs to guess the locations.

## Making a Line Plot

Practice creating a line plot. Use raisin counts for 17 boxes of raisins to graph the distribution of raisins per box.

## Making a Stem and Leaf Plot

A line plot may not be a useful graph for investigating variation so we must come up with a new representation based on groups of data. Construct a stem and leaf plot from a set of 26 data values.

## Making a Tree Diagram

A tree diagram is a helpful tool for determining theoretical or mathematical probabilities. Toss a coin and watch as branches represent a toss of either head or tails.

## Making Sense of Mathematics Text

In this activity, explore different protocols for making sense of mathematical text that meet the needs of your students.

## Mass Units and Their Symbols

Study the names and abbreviations of mass units in both the metric and British systems. Then play a game to see how well you remember them.

## Measuring Short-Term Recall

Compare your recall of a list of non-words versus a list of words in timed sessions. Consider whether or not there might be bias in your experimental design.

## Measuring Steepness

Does the ratio of height to distance and the angle of elevation change as you move a ladder? Identify any patterns that exist between the height-to-distance ratios and the angles.

## The Median

Determine the median of eleven noodles. Consider what you would or would not be able to tell about the other noodles if you could only see the median noodle.

## The Midline Cut

You can cut geometric figures into pieces that you can rearrange to form different geometric figures. Show how the midline cut of any triangle can be used to form a parallelogram. View non-Flash version.

## Modeling Fractions With Cuisenaire Rods

Learn how to represent fractions with Cuisenaire Rods. Use these rods to perform operations with fractions.